By the time the withdrawal reached Brigade Hill, the three AIF battalions were able to fight together for the first time. The 2/14th, 2/16 and the 2/27th battalions took up defensive positions on the high ground at Brigade Hill and Mission Ridge. But the Japanese brought up even more troops and made a final concerted assault, aiming to wipe out the defenders with a knock-out blow.
In their first action against the Japanese, the newly-arrived 2/27th held the forward position with the other two units on ridges behind them. In a furious attack, the Japanese threw themselves at the Australians and drove a wedge between the two positions. Many who had survived the cauldron at Isurava, like Charlie McCallum, fell trying to hold Brigade Hill. Others, like Captains ‘Lefty’ Langridge and Claude Nye died in magnificent but futile attempts to break through to brigade headquarters against impossible odds.
“I particularly think of blokes like ‘Lefty’ Langridge and Claude Nye, one with a company of the 2/16th and the other with a company of the 2/14th who were ordered to go around the right flank where the Japanese were, to try to force a way through them to Brigade Hill. They knew they couldn’t do it. They knew they were going to die. Langridge handed over his pay book and his dog tags to one of his mates. He was a brave soldier. So was Claude Nye. They were both killed.” (Lt Colonel Ralph Honner)
The 21st Brigade continued to withdraw through Eora Creek, Templeton’s Crossing and Myola, the Japanese followed hard after them. Between 30 August and 6 September, the 2/14th and the 2/16th fell back as far as Efogi where they encountered the advance parties of the 2/27th Battalion. The 2/27th now mounted a defensive screen at Mission Ridge just south of Efogi. From here, throughout the night of 6-7 September, they watched as a procession of lights moved down the track between Myola and Efogi. The Japanese were getting themselves into position for an attack that came just before dawn on 8 September. All day long the Japanese charged the Australian frontal positions with determination but were beaten back by an equally determined defence. So severe was the fighting that Captain C A W Sims’ company on that day used up its entire supply of grenades and ammunition as well as the whole battalion ammunition reserve.
While Sims’ position was being subjected to this frontal assault, other Japanese soldiers infiltrated around the 2/27 Battalion’s positions. They moved well to the Australian rear where elements of the 2/16th were guarding brigade headquarters. Soon the headquarters was under attack and forced to move back. Effectively, the enemy had now cut the track between headquarters and the forward Australian positions. On the afternoon of 8 September the 2/14th tried to break out through the Japanese positions to get back down the track. Captain Claude Nye. 2/14th and Captain Frank Sublet, 2/16th led a charge in which Nye was eventually killed. Although a few men broke through, the Japanese positions held and the Australian battalions had to find another way round the Japanese through the jungle to Menari.
As they moved off the track, the enemy pursued them vigorously but was successfully driven off in a rearguard action by B and D companies of the 2/27th. Captain Harry Katekar, 2/27th Battalion, realised that the gallantry of these two companies had saved them all:
After another hard-fought stand at Brigade Hill between 6 and 8 September, Potts handed over command to Brigadier Porter, who decided on a further withdrawal to Ioribaiwa. The 2/14th and 2/16th Battalions made it into Menari just as the Japanese began to shell the area but the 2/27th was too far behind and, being forced to turn back, began its long trek through the mountains to Jawawere. From Menari the Australians withdrew back to Ioribaiwa where the battalions of the fresh 25th Brigade – 2/25th, 2/31st and 2/33rd – along with the 3rd Battalion took over the defence. By 17 September, the tired battalions of the 21st Brigade had been pulled back. After further Japanese pressure, the Australians withdrew to Imita Ridge where the 25th Brigade, the 2/1st Pioneer Battalion and the 3rd Battalion took up defensive positions. From Imita Ridge there was to be no more withdrawal. This was made clear in a message from Lieutenant General Sydney Rowell, commander, New Guinea Force, to Major General Arthur Allen, commander 7th Division, AIF:
However many troops the enemy has they must all have walked from Buna. We are how so far back that any further withdrawal is out of the question and Eather (commander, 25th Brigade) must fight it out at all costs.
Here the Japanese attacked next day but made little progress. In fact, severe fighting continued around Ioribaiwa for a week. But the Japanese advance was losing impetus, while the Australian defence was gaining in strength through the arrival of more units of the 7th Division. Command of the forward area passed to Brigadier Ken Eather, leading the 25th Brigade, AIF, on 14 September. In addition to its normal battalions (2/25th, 2/31st and 2/33rd), that brigade also had attached the 3rd Battalion and the 2/1st Pioneer Battalion – a total of 2,500 combat troops. By September 17 the Australians had fallen back on Ioribaiwa, high on the slopes of a ridge in the last area of high country before the approaches to Port Moresby. This proved the turning point of the Japanese advance. Here, as a result of their mauling down the Track and their rapidly deteriorating supply situation, they were forced to reconsider their position.